DE69328446D1 - METHOD FOR CUTTING A TUBE - Google Patents

METHOD FOR CUTTING A TUBE

Info

Publication number
DE69328446D1
DE69328446D1 DE69328446T DE69328446T DE69328446D1 DE 69328446 D1 DE69328446 D1 DE 69328446D1 DE 69328446 T DE69328446 T DE 69328446T DE 69328446 T DE69328446 T DE 69328446T DE 69328446 D1 DE69328446 D1 DE 69328446D1
Authority
DE
Germany
Prior art keywords
tube
walls
kerf
cut
kerfs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69328446T
Other languages
German (de)
Other versions
DE69328446T2 (en
Inventor
Milan Virsik
Henry Mccarbery
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brazeway Inc
Original Assignee
Brazeway Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/833,051 external-priority patent/US5249345A/en
Application filed by Brazeway Inc filed Critical Brazeway Inc
Application granted granted Critical
Publication of DE69328446D1 publication Critical patent/DE69328446D1/en
Publication of DE69328446T2 publication Critical patent/DE69328446T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D31/00—Shearing machines or shearing devices covered by none or more than one of the groups B23D15/00 - B23D29/00; Combinations of shearing machines
    • B23D31/002—Breaking machines, i.e. pre-cutting and subsequent breaking

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Metal Extraction Processes (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

A method of severing an elongated flat metal tube (10) of the type including upper and lower flat horizontal walls (10a, 10b), vertical edge walls and vertical partition walls spaced between the edge walls and interconnecting the upper and lower walls to divide the tube into a series of parallel, generally rectangular, longitudinally extending passages. The tube is cut by forming transverse kerfs in the upper and lower walls of the tube and thereafter exerting a relative pulling force on the tube sections on opposite sides of the plane in which the kerfs have been formed to tear apart the remaining tube material at the severing plane and sever the tube. The kerfs are formed in a two-step broaching operation comprising a first cut in which a narrow generally V-shaped narrow angle kerf is formed and a second cut in which the kerf is widened to provide a wide, generally V-shaped, wide angle kerf.
DE69328446T 1992-02-10 1993-08-20 METHOD FOR CUTTING A TUBE Expired - Fee Related DE69328446T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/833,051 US5249345A (en) 1992-02-10 1992-02-10 Method for cutting elongated tube stock
PCT/US1993/007858 WO1995005926A1 (en) 1992-02-10 1993-08-20 Method for cutting elongated tube

Publications (2)

Publication Number Publication Date
DE69328446D1 true DE69328446D1 (en) 2000-05-25
DE69328446T2 DE69328446T2 (en) 2000-12-07

Family

ID=26786971

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69328446T Expired - Fee Related DE69328446T2 (en) 1992-02-10 1993-08-20 METHOD FOR CUTTING A TUBE

Country Status (6)

Country Link
EP (1) EP0714342B1 (en)
AT (1) ATE191874T1 (en)
DE (1) DE69328446T2 (en)
DK (1) DK0714342T3 (en)
ES (1) ES2145057T3 (en)
WO (1) WO1995005926A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10212309C1 (en) * 2002-03-20 2003-02-13 Erbsloeh Aluminium Gmbh Separation method for aluminium or aluminium alloy flat tubular profiles has solder coating removed from flat tubular profile at separation point before separation
DE102009036006B3 (en) * 2009-08-04 2010-12-30 Modine Manufacturing Co., Racine Method for producing metallic tube of heat exchanger, involves breaking tubes at breaking points between roller pairs, where tubes are loaded with laminar contact pressure during breaking and sufficient breaking load is transmitted to tubes
DE102010023384B4 (en) 2010-06-10 2014-08-28 Modine Manufacturing Co. Manufacturing process, in particular for pipes and tear-off device
CN112589868B (en) * 2020-11-25 2022-05-03 太原龙投富思特新材料科技有限公司 Preparation and processing method of external wall heat-insulation decorative material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1350635A (en) * 1970-06-18 1974-04-18 Wafios Maschinen Wagner Apparatus for cutting pins for producing chain links
US5133492A (en) * 1990-12-19 1992-07-28 Peerless Of America, Incorporated Method and apparatus for separating thin-walled, multiport micro-extrusions
US5143268A (en) * 1991-07-17 1992-09-01 Crown Unlimited Machine, Inc. Flat tube cutting techniques

Also Published As

Publication number Publication date
EP0714342A4 (en) 1998-02-25
DK0714342T3 (en) 2000-09-18
WO1995005926A1 (en) 1995-03-02
EP0714342B1 (en) 2000-04-19
DE69328446T2 (en) 2000-12-07
ATE191874T1 (en) 2000-05-15
EP0714342A1 (en) 1996-06-05
ES2145057T3 (en) 2000-07-01

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee